Elevator system against accidental movement

Abstract

The invention discloses an elevator system capable of preventing accidental movement. A flange rotating disc is rotationally arranged in the middle of a cross beam of an elevator car, a connecting rod is rotationally and symmetrically arranged at the outer edge part of the flange rotating disc, a bolt is articulated at the other end of the connecting rod and is assembled on the cross beam in a sliding manner, a bolt hole base on a guide rail is fixedly assembled at a level position of the elevator car, a bolt hole is formed on the bolt hole base for allowing a conical surface section of the bolt to protrude thereto, the bolt stretches into the bolt hole at one movement limit position and comes off from the bolt hole at the other limit position, a detector switch is assembled on the cross beam, a groove is formed on the bolt for allowing the contactor of the detector switch to stretch thereto freely when the bolt comes off the bolt hole, when the bolt moves outwards to stretch into the bolt hole, the contactor of the detector switch comes off from the groove and is pressed down by the bolt, the detector switch is in transmission connection with a control main board of the elevator, and the control main board of the elevator is in control connection with a motor. According to the elevator system, the limitation between the elevator car and the guide rail can be ensured by a mechanical structure, so that no accidental movement occurs to the elevator car.

Description

technical field [0001] The invention relates to an elevator system for preventing accidental movement, which belongs to the field of elevators. Background technique [0002] When the elevator car is leveling, due to insufficient traction force or other failure reasons, the car may move unexpectedly. In the prior art, the safety gear is generally used to prevent the guide rail from being locked, but the safety gear is the last guarantee of the elevator. Action, fatigue, etc. aging too quickly; In addition, the detection and execution of the unexpected movement of the car must pass through the electronic control board, speed limiter, etc., the detection process is long and the response speed is slow; moreover, if there is only one-way safety gear, it cannot Prevent accidental upward movement. Some elevator systems also use a multi-link latch mechanism to prevent accidental movement of the car. This structure cannot be executed automatically, but can only be performed manually...

AI Technical Summary

Problems solved by technology

[0002] When the elevator car is leveling, due to insufficient traction force or other failure reasons, the car may move unexpectedly. In the prior art, the safety gear is generally used to prevent the guide rail from being locked, but the safety gear is the last guarantee of the elevator. Action, fatigue, etc. aging too quickly; In addition, the detection and execution of the unexpected movement of the car must pass through the electronic control board, speed limiter, etc., the detection process is long and the response speed is slow; moreover, if there is only one-way safety gear, it cannot prevent unintended upward movement

Some elevator systems also use a multi-link latch mechanism to prevent accidental movement of the car. This structure cannot be executed automatically, but can only be performed manually;

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